If you decide to shear your dog, it is advisable to talk to an expert groomer.
In fact, shearing is absolutely forbidden in some breeds with short or medium hair and undercoat with moulting.
In most cases, an ad hoc grooming will suffice by cleaning the hair, maintaining nails, legs, ears and genitals.
In some breeds such as the German Dachshund, stripping is practiced using a special comb.
Breeds such as the dwarf poodle, the Scottish or others whose hair grows continuously must proceed with the actual shearing, trying to reassure the dog by being at his side while cutting the hair.